Study of SO2 oxidation over V2O5/activated carbon catalyst using in situ diffuse reflectance infrared Fourier transformation spectroscopy
- Resource Type
- Article
- Authors
- Wenjing Xu; Zhanggen Huang; Qianqian Guo; Yaqin Hou; Xiaojin Han
- Source
- Korean Journal of Chemical Engineering, 31(5), 170, pp.794-800 May, 2014
- Subject
- 화학공학
- Language
- English
- ISSN
- 1975-7220
0256-1115
The SO2 oxidation over V2O5/AC catalyst was studied using an in situ diffuse reflectance infrared Fouriertransformation spectroscopy technique at 120 oC. Results reveal that the surface oxygen groups could neither act asactive sites for SO2 oxidation nor supply the oxygen needed for VV↔VIV redox cycle. The vanadia species and gasphase oxygen are essential for SO2 oxidation. During SO2 oxidation over V2O5/AC, the surface hydroxyl groups involvein the formation of sulfate species. The role of water vapor in flue gas might be to supplement the hydroxyl groupsconsumed so that the SO2 oxidation could continue.